91 



F. Acute or acuminate. 



Ilypnum. 



EE. Entire. 

 F. Acute. 



D. Costate. 



E. Serrate. 



F. Acuminate. 



CalUerg'm Schrehrri. 

 CC. Capsule ovoiu, krhct or inclined. 



Cirriphyllum Jioscii. 

 Brachylheciiim. 



{To be conUnued) 



NOTES ON PHILIPPINE VEGETATION: THE 

 CASUARINA ASSOCIATION 



By Frank; C. Gates 



One of the most striking impressions one receives in different 

 countries is a similarity of the appearance of vegetation, en 

 masse, produced by entirely different plants. Even a second 

 general look at the vegetation as a whole may not disclose the 

 differences which, however, a closer observation reveals. 



The vegetation of the sandy river-bottom flats in Central 



Fig. I. A general view of a grove of Casuarina equisetifolia. \'illar, Zambales 

 Prov-ince, December 24, 1914. 



Zambales Province, Philippine Islands, furnishes an excellent 

 example. As is shown in the figures, the resemblance of the 



